Published on April 7, 2017
This episode of the Smithsonian National Air and Space Museum’s STEM in 30 series focuses on Earth Day with a look at the beginnings of Earth Day and how a better understanding of our place in the universe has evolved through photographic scientific discoveries. STEM in 30 is a series of live, fast-paced, 30-minute webcasts designed to increase interest and engagement in STEM for students.
